30" x 36" or 36" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" 1/2” - 3119 PSI

1/2” - 3119 PSI

is fireproof and ensures efficient thermal performance

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 26" duct opening (measured at the opening)

30" x 36" or 36" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" 1/2” - 3119 PSI+ Product Details Size 30" x 36" or 36" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32. 5" X 38. 5". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing